8648981771 has 4 divisors (see below), whose sum is σ = 8650418112. Its totient is φ = 8647545432.

The previous prime is 8648981743. The next prime is 8648981821. The reversal of 8648981771 is 1771898468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8648981771 - 2¹⁴ = 8648965387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8648981771.

It is not an unprimeable number, because it can be changed into a prime (8648981711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709100 + ... + 721193.

It is an arithmetic number, because the mean of its divisors is an integer number (2162604528).

Almost surely, 2^8648981771 is an apocalyptic number.

8648981771 is a deficient number, since it is larger than the sum of its proper divisors (1436341).

8648981771 is a wasteful number, since it uses less digits than its factorization.

8648981771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436340.

The product of its digits is 5419008, while the sum is 59.

The square root of 8648981771 is about 92999.9019945720. The cubic root of 8648981771 is about 2052.6819366319.

The spelling of 8648981771 in words is "eight billion, six hundred forty-eight million, nine hundred eighty-one thousand, seven hundred seventy-one".